This 42V 2A fast charger is professionally designed for 36V 10S lithium-ion battery packs, delivering stable and efficient charging for your electric mobility devices. With a wide input of 100-240V, it supports global use and features smart CC/CV charging technology to speed up charging while protecting battery health. Equipped with 3 interchangeable connectors, it fits most common ports and offers wide compatibility with Pocket Mod, Sports Mod, electric scooters, e-bikes, hoverboards, and most 36V lithium-powered ride-ons. It is an ideal direct replacement for your original charger. Built-in multiple safety protections guard against over-voltage, over-current, short circuit, overheating, and reverse polarity, ensuring safe charging and extending battery lifespan. The compact, lightweight design with efficient heat dissipation provides low noise, stable performance, and easy portability for home, travel, and outdoor backup use. Note: Only for 36V lithium batteries; not for lead-acid batteries.